Mash-Up-Loid

Mash-Up-Loid (マッシュアップ・ロイド), a combination of the terminology Mash-Up and Vocaloid, pertains to fanmade Vocaloids with unique traits.

Depiction
Mash-Up Vocaloids are typically depicted with green skin or unique appearances.

History
Mash-Up Vocaloids were first introduced on May 18, 2012. The first official Mash-Up-Loid, Hatsune Masaya, being introduced on December 17, 2011.

Mash-Up-Loid on Fanloid Wiki

 * Hatsune Masaya, is a fanmade based on Vocaloid Hatsune Miku.
 * Megurine Lukia, is a fanmade based on Vocaloid Megurine Luka.
 * Kagamine Renee/Lenku, is a fanmade based on Vocaloid Kagamine Rin and Kagamine Len.
 * Sakine Miley, is a fanmade based on Fanloid Sakine Meiko.
 * Akita Nicole,  is a fanmade based on Fanloid Akita Nicole.
 * Chess and Check, is an original fanmade Vocaloid.
 * Sora Momo, is an original fanmade Vocaloid.
 * Sora Yoru, is an original fanmade Vocaloid.
 * Miku & Stitch, is a fanmade based on Vocaloid Hatsune Miku.